oss-fuzz/type2.cpp: avoid usage of expensive std::ostringstream
#14078
| Job | Run time |
|---|---|
| 7m 14s | |
| 8m 6s | |
| 4m 53s | |
| 11m 10s | |
| 2m 36s | |
| 5m 10s | |
| 2m 59s | |
| 8m 30s | |
| 5m 5s | |
| 7m 48s | |
| 4m 44s | |
| 4m 27s | |
| 2m 38s | |
| 2m 32s | |
| 1m 43s | |
| 1m 32s | |
| 26s | |
| 3m 22s | |
| 23s | |
| 1m 43s | |
| 18m 19s | |
| 1h 45m 20s |